Copybara bot | be50d49 | 2023-11-30 00:16:42 +0100 | [diff] [blame] | 1 | /** |
| 2 | * @license |
| 3 | * Copyright 2016-2017 Leif Olsen. All Rights Reserved. |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | * |
| 17 | * This code is built with Google Material Design Lite, |
| 18 | * which is Licensed under the Apache License, Version 2.0 |
| 19 | */ |
| 20 | |
| 21 | |
| 22 | import {jsonStringToObject} from '../utils/json-utils'; |
| 23 | import { |
| 24 | IS_UPGRADED, |
| 25 | } from '../utils/constants'; |
| 26 | |
| 27 | const JS_FORMAT_FIELD = 'mdlext-js-formatfield'; |
| 28 | const FORMAT_FIELD_COMPONENT = 'MaterialExtFormatfield'; |
| 29 | |
| 30 | /** |
| 31 | * Detect browser locale |
| 32 | * @returns {string} the locale |
| 33 | * @see http://stackoverflow.com/questions/1043339/javascript-for-detecting-browser-language-preference |
| 34 | */ |
| 35 | const browserLanguage = () => { |
| 36 | return navigator.languages |
| 37 | ? navigator.languages[0] |
| 38 | : navigator.language || navigator.userLanguage; |
| 39 | }; |
| 40 | |
| 41 | /** |
| 42 | * The formatfield formats an input field using language sensitive number formatting. |
| 43 | */ |
| 44 | |
| 45 | class FormatField { |
| 46 | static timer = null; |
| 47 | |
| 48 | element_; |
| 49 | input_; |
| 50 | options_ = {}; |
| 51 | intlGroupSeparator_; |
| 52 | intlDecimalSeparator_; |
| 53 | |
| 54 | constructor(element) { |
| 55 | this.element_ = element; |
| 56 | this.init(); |
| 57 | } |
| 58 | |
| 59 | clickHandler = () => { |
| 60 | clearTimeout(FormatField.timer); |
| 61 | }; |
| 62 | |
| 63 | focusInHandler = () => { |
| 64 | if(!(this.input.readOnly || this.input.disabled)) { |
| 65 | this.input.value = this.unformatInput(); |
| 66 | //setTimeout(() => this.input.setSelectionRange(0, this.input.value.length), 20); |
| 67 | FormatField.timer = setTimeout(() => this.input.select(), 200); |
| 68 | } |
| 69 | }; |
| 70 | |
| 71 | focusOutHandler = () => { |
| 72 | clearTimeout(FormatField.timer); |
| 73 | |
| 74 | if(!(this.input.readOnly || this.input.disabled)) { |
| 75 | this.formatValue(); |
| 76 | } |
| 77 | }; |
| 78 | |
| 79 | get element() { |
| 80 | return this.element_; |
| 81 | } |
| 82 | |
| 83 | get input() { |
| 84 | return this.input_; |
| 85 | } |
| 86 | |
| 87 | get options() { |
| 88 | return this.options_; |
| 89 | } |
| 90 | |
| 91 | stripSeparatorsFromValue() { |
| 92 | const doReplace = () => this.input.value |
| 93 | .replace(/\s/g, '') |
| 94 | .replace(new RegExp(this.options.groupSeparator, 'g'), '') |
| 95 | .replace(this.options.decimalSeparator, '.'); |
| 96 | //.replace(this.intlGroupSeparator_, ''), |
| 97 | //.replace(this.intlDecimalSeparator_, '.'); |
| 98 | |
| 99 | return this.input.value ? doReplace() : this.input.value; |
| 100 | } |
| 101 | |
| 102 | fixSeparators(value) { |
| 103 | const doReplace = () => value |
| 104 | .replace(new RegExp(this.intlGroupSeparator_, 'g'), this.options.groupSeparator) |
| 105 | .replace(this.intlDecimalSeparator_, this.options.decimalSeparator); |
| 106 | |
| 107 | return value ? doReplace() : value; |
| 108 | } |
| 109 | |
| 110 | formatValue() { |
| 111 | if(this.input.value) { |
| 112 | const v = new Intl.NumberFormat(this.options.locales, this.options) |
| 113 | .format(this.stripSeparatorsFromValue()); |
| 114 | |
| 115 | if('NaN' !== v) { |
| 116 | this.input.value = this.fixSeparators(v); |
| 117 | } |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | unformat() { |
| 122 | const doReplace = () => this.input.value |
| 123 | .replace(/\s/g, '') |
| 124 | .replace(new RegExp(this.options.groupSeparator, 'g'), '') |
| 125 | .replace(this.options.decimalSeparator, '.'); |
| 126 | |
| 127 | return this.input.value ? doReplace() : this.input.value; |
| 128 | } |
| 129 | |
| 130 | unformatInput() { |
| 131 | const doReplace = () => this.input.value |
| 132 | .replace(/\s/g, '') |
| 133 | .replace(new RegExp(this.options.groupSeparator, 'g'), ''); |
| 134 | |
| 135 | return this.input.value ? doReplace() : this.input.value; |
| 136 | } |
| 137 | |
| 138 | removeListeners() { |
| 139 | this.input.removeEventListener('click', this.clickHandler); |
| 140 | this.input.removeEventListener('focusin', this.focusInHandler); |
| 141 | this.input.removeEventListener('focusout', this.focusOutHandler); |
| 142 | } |
| 143 | |
| 144 | init() { |
| 145 | const addListeners = () => { |
| 146 | this.input.addEventListener('click', this.clickHandler); |
| 147 | this.input.addEventListener('focusin', this.focusInHandler); |
| 148 | this.input.addEventListener('focusout', this.focusOutHandler); |
| 149 | }; |
| 150 | |
| 151 | const addOptions = () => { |
| 152 | const opts = this.element.getAttribute('data-formatfield-options') || |
| 153 | this.input.getAttribute('data-formatfield-options'); |
| 154 | if(opts) { |
| 155 | this.options_ = jsonStringToObject(opts, this.options); |
| 156 | } |
| 157 | }; |
| 158 | |
| 159 | const addLocale = () => { |
| 160 | if(!this.options.locales) { |
| 161 | this.options.locales = browserLanguage() || 'en-US'; //'nb-NO', //'en-US', |
| 162 | } |
| 163 | }; |
| 164 | |
| 165 | const addGrouping = () => { |
| 166 | const s = (1234.5).toLocaleString(this.options.locales, { |
| 167 | style: 'decimal', |
| 168 | useGrouping: true, |
| 169 | minimumFractionDigits: 1, |
| 170 | maximumFractionDigits: 1 |
| 171 | }); |
| 172 | |
| 173 | this.intlGroupSeparator_ = s.charAt(1); |
| 174 | this.intlDecimalSeparator_ = s.charAt(s.length-2); |
| 175 | this.options.groupSeparator = this.options.groupSeparator || this.intlGroupSeparator_; |
| 176 | this.options.decimalSeparator = this.options.decimalSeparator || this.intlDecimalSeparator_; |
| 177 | |
| 178 | if(this.options.groupSeparator === this.options.decimalSeparator) { |
| 179 | const e = `Error! options.groupSeparator, "${this.options.groupSeparator}" ` + |
| 180 | 'and options.decimalSeparator, ' + |
| 181 | `"${this.options.decimalSeparator}" should not be equal`; |
| 182 | throw new Error(e); |
| 183 | } |
| 184 | }; |
| 185 | |
| 186 | this.input_ = this.element.querySelector('input') || this.element; |
| 187 | |
| 188 | addOptions(); |
| 189 | addLocale(); |
| 190 | addGrouping(); |
| 191 | this.formatValue(); |
| 192 | addListeners(); |
| 193 | } |
| 194 | |
| 195 | downgrade() { |
| 196 | this.removeListeners(); |
| 197 | } |
| 198 | |
| 199 | } |
| 200 | |
| 201 | (function() { |
| 202 | 'use strict'; |
| 203 | |
| 204 | /** |
| 205 | * @constructor |
| 206 | * @param {HTMLElement} element The element that will be upgraded. |
| 207 | */ |
| 208 | const MaterialExtFormatfield = function MaterialExtFormatfield(element) { |
| 209 | this.element_ = element; |
| 210 | this.formatField_ = null; |
| 211 | |
| 212 | // Initialize instance. |
| 213 | this.init(); |
| 214 | }; |
| 215 | window['MaterialExtFormatfield'] = MaterialExtFormatfield; |
| 216 | |
| 217 | /** |
| 218 | * Initialize component |
| 219 | */ |
| 220 | MaterialExtFormatfield.prototype.init = function() { |
| 221 | if (this.element_) { |
| 222 | this.element_.classList.add(IS_UPGRADED); |
| 223 | this.formatField_ = new FormatField(this.element_); |
| 224 | |
| 225 | // Listen to 'mdl-componentdowngraded' event |
| 226 | this.element_.addEventListener('mdl-componentdowngraded', this.mdlDowngrade_.bind(this)); |
| 227 | } |
| 228 | }; |
| 229 | |
| 230 | /** |
| 231 | * Get options object |
| 232 | * |
| 233 | * @public |
| 234 | * |
| 235 | * @returns {Object} the options object |
| 236 | */ |
| 237 | MaterialExtFormatfield.prototype.getOptions = function() { |
| 238 | return this.formatField_.options; |
| 239 | }; |
| 240 | MaterialExtFormatfield.prototype['getOptions'] = MaterialExtFormatfield.prototype.getOptions; |
| 241 | |
| 242 | |
| 243 | /** |
| 244 | * A unformatted value is a string value where the locale specific decimal separator |
| 245 | * is replaced with a '.' separator and group separators are stripped. |
| 246 | * The returned value is suitable for parsing to a JavaScript numerical value. |
| 247 | * |
| 248 | * @example |
| 249 | * input.value = '1 234,5'; |
| 250 | * inputElement.MaterialExtFormatfield.getUnformattedValue(); |
| 251 | * // Returns '1234.5' |
| 252 | * |
| 253 | * @public |
| 254 | * |
| 255 | * @returns {String} the unformatted value |
| 256 | */ |
| 257 | MaterialExtFormatfield.prototype.getUnformattedValue = function() { |
| 258 | return this.formatField_.unformat(); |
| 259 | }; |
| 260 | MaterialExtFormatfield.prototype['getUnformattedValue'] = MaterialExtFormatfield.prototype.getUnformattedValue; |
| 261 | |
| 262 | /* |
| 263 | * Downgrade component |
| 264 | * E.g remove listeners and clean up resources |
| 265 | */ |
| 266 | MaterialExtFormatfield.prototype.mdlDowngrade_ = function() { |
| 267 | this.formatField_.downgrade(); |
| 268 | }; |
| 269 | |
| 270 | // The component registers itself. It can assume componentHandler is available |
| 271 | // in the global scope. |
| 272 | /* eslint no-undef: 0 */ |
| 273 | componentHandler.register({ |
| 274 | constructor: MaterialExtFormatfield, |
| 275 | classAsString: FORMAT_FIELD_COMPONENT, |
| 276 | cssClass: JS_FORMAT_FIELD, |
| 277 | widget: true |
| 278 | }); |
| 279 | |
| 280 | })(); |